code: def handle_update_search_space(self, data):
      _logger.info("New search space: %s", data)
      self.tuner.update_search_space(data)
  
imports: import logging
  from collections import defaultdict
  from nni import NoMoreTrialError
  from nni.assessor import AssessResult
  from .common import multi_phase_enabled
  from .env_vars import dispatcher_env_vars
  from .msg_dispatcher_base import MsgDispatcherBase
  from .tuner_command_channel import CommandType
  from ..common.serializer import dump, load
  from ..utils import MetricType
label_desc: Use image node_id 7 for calling the MsgDispatcher obj's underlying member method code with example usage: obj.handle_update_search_space(data) without return types